Folding and punching machine.



H. R. STANBON.

FOLDING AND PUNCHING MACHINE.

APPLICATION FILED MAY 9. I9I3.

l ,y Patented Nov. 19, 1918. i w 3 SHEETS-SHEET l.

Z f f I/I//T/VESSES 'Y Fjgl. AVI/@Waffe H. R. STANBON.

FOLDING AND PUNCHING MACHINE.

. APPLICATION FILED MAY 9. I9I3.v

Isa PmIeaN0v.19,191s.

3 lSHEETS-SHEET?.

H. R. STANBON.

FOLDING AND PUNCHING MACHINE.

APPLICATION FILED MAY 9. Isls.

1,2%4493 l muted N0v.19,1918.

3 SHEETS-SHEET a.

Figi@ l @G74 j( m I @QN/M Massachusetts,

HARRY R. STANBON, 0F LYNN, M-ASSACH USETTS, ASSIGNOR, BY MESNE ASSIGr].\1'1llIE1\l"IS,A

T0 UNITED SHOE MACHINERY CORPORATION, 0F PATERSON, NEW JERSEY, A COR- PORATION OF NEW JERSEY.

FOLDING AND PUNoI-IING MACHINE.

To all whom t may concern Be it known' that I, HARRY R. S'rANoN, a citizen -of the United States, residing at Lynn, in the county of Essex and State of have invented certain Improvements in Folding and Punching Machines, of. which the following description, in connection with the accompanying drawings, is a specification, like reference characters on-the ldrawings indicating like parts in the several figures.

This invention relates to folding and punching machines and is herein illustrated as embodied in a machine for folding and punching the margins of pieces of leather which are to be incorporated in the uppers of boots and shoes. The purpose of the folding is to produce a finished edge and of the punching to produce an ornamental design of some sort along the margin.

Hitherto these two operations have been carried out on two separate machines; and the general object of the present invention is to produce a combined foldingand punchin machine whereby a piece of stock may be folded and punched in a single operation. This and other features of the invention including certain details of construction and combinations of parts will be described in connection with an illustrative machine and pointed out in the appended claims.

Referring now to the accompanying drawings Figure 1 is a'front elevation of a portion of a machine in which the present invention is embodied;

Fig. 2 isa section on the line 2-2 of of the machine shown in Fig. 1.

Mounted upon the bed 1 of the machine is a punch plate 3 held in place by eccentrics 5 which are pivoted to an upright portion 7 of the base and are rotatable by means of handles 9. This punch plate carries a series of punching tools, herein shown as a plurality of perforating punches 11, and a stripper plate 13, the latter being mounted upon posts which are in turn supported by springs Specication of Letters Patent.

ramal-.ea Nov. i9, i918.

Application mea May 9], 1913. serial No. 766,604.

17 as shown in Fig. 3. In the illustrative machine the stripper plate serves not only its usual function but also the function of a support or table upon which the stock 100 lies during the folding operation and against which the fold is pressed.

Mounted to reciprocate 'in ways formed by guides 19 on the upright portion 7 isla cross-head 21 carried by a rod 23 the extremities of which are connected b'y eccentric rods 25 with eccentrics 27 fast upon the driving shaft 29. This driving shaft is connected by a suitable one revolution clutch (not shown) to any convenient power shaft. Rotation of the driving shaft 29 causes the cross-head 21 to start from the position shown in Figs. 1 and 2, to descend to the position shown in Fig. 5, and then to return to and come to rest in the iirst named position; and the folding and punching are accomplished by this reciprocation of the cross-head.

The creaser 31'l over which the fold is made is rigidly fastened to rods 33 in the angular relation shown in the drawings, said rods being slidable in a holder 35 pivoted at 37 to a casting 39 which is fastened by set screws 41 to presser rods or clamping members 43. rIhe'se rods are slidable in bosses in the cross-head 21 and, together with the casting 39, are constantly urged downwardly by springs 45 which rest at their lower ends against the casting and at their upper ends against bosses of the cross-head 21. The upper ends of the creaser carrying rods 33 are pinned to a casting 47 having bossesA in which is also pinned a rod 19 upon which are pivoted the ends of an operating lever 51, said lever being also pivoted near its center on a pin 53 carried by the casting 39 and having at its inner extremity a yoke which embraces a pin or rod 57 on the casting 21. When, therefore, the cross-head 21 is raised, the `creaser is swung obliquely downwardly from the position shown in Figs. 1 and 2 toward that shown in Fig. 3; and when the cross-head is lowered, the creaser is raised as shown in Fig. 5.

In the. initial position of the parts, as shown in Figs. 1 and 2, the presser rods 43 are in raised position to permit the stock to be placed upon the plate or table 13. In order to bring thesepresser rods down upon the stock and to raise them from it at the proper time the following mechanism is provided A latch 59 pivoted at 61 to the cross-head 21 normally engages a hardened block 63 which is screwed t0 the casting 39, said latch being held from angular movement in a counter-clockwise direction by a set screw 65 threaded through a boss on the upright portion 7 of the frame of the machine. A coiled spring 67 bears against the under side of the tail of the latch and tends 4 to return said latch to the position shown in Fig. 2 when permitted to do so. When, therefore, the eccentric 27 is rotated from the position shown in Fig. 2 to that shown in Fig. 3 the first part of the upward movement of the cross-head, by reason of the engagement of the screw 65 with the tail of the latch `59, tilts the latch about the pivot 61 in opposition to the force of the spring 67 and disengages the latch from the block 63 thereby releasing the casting 39 and permitting the springs 45 to force the casting, and with it the presser rods 43, downwardly until said rods descend upon the stock and clamp it to the support 13. At the same time the creaser is lowered somewhat and swung a little to the right. upward movement of the cross-head then serves to swing the creaser still farther to the right until it occupies the position shown in Fig. 3. When, in the further rotation of the eccentric 27, the cross-head is lowered and the latch 59 carried down below the block 63, the spring 67 raises the tail of the latch to an approximately horizontal position so that its point swings beneath the edge of the block 63 in position to engage said block when the cross-head rises.

While the creaser 31 is in the position shown in Fig. 3 the folder 69 is operated to turn ythe margin of the stock vover the edge of the creaser. This folder has fast thereto or integral therewith a cam block 71 which is pivoted on a rod 73, said rod being held by depending arms 75 which are in turn pivoted to ears 77 (see Fig. 4) carried by the cross-head 21. The upper ends of the levers 75 have sockets to receive one end of springs 79, the other end being received in sockets in the cross-head. A

coiled spring 81, fast at one end to the rod 73, has a free end which bears against the under side of the folding plate 69 and tendsy to hold said plate up against screws 83 which are threaded through ears on the arms 7 In the normal position of rest of the machine, shown in Fig. 2, the cam 71 is held from movement to the left by a plate 85. As4 soon, however, as the cross-head has risen to the position shown in Fig. 3 the springs 79 swing the folder to the left, as shown in said figure, to lay the margin of the stock over the creaser and thereby form the fold. The distance to .which the folder The latter part of the moves to the left is determined by stops 86 in the form of screw-bolts which may be adjusted as desired. As the lcross-head starts its downward movement, the nose of the cam block 71 strikes the upper edge of the plate 85, as shown in Fig. 4, so that further downward movement of the cross-head tilts the folder in a clockwise direction about the rod 73 in opposition to the spring 81 and finally lowers it into the position shown in Fig. 5. During the subsequent rise of the cross-head toward the positionshown in Fig. 2 the nose 0f the cam block 71 enters the groove 87 in the pla-te 85, whereupon the spring 81 tilts the cam in a counter-clockwise directionso that, when the driving shaft 29 comes to rest after a complete revolution, the folder occupies the position shown in Fig. 2. Near the forward edge of the folder are a series of stops 89 which serve as a gage against which the edge of the stock is placed.

In order to punch the stock and at the same time to press the fold, a punch block 91 is fastened to the lower portion of the cross-head by a dove-tailed connection shown in Fig. 1. In Fig. 4 the fold has been formed, the folder is about to be moved downwardly and swung out of the way, and the creaser isbeing withdrawn from the fold. Further downward movement of the crosshead 21 rst completes the withdrawal of the creaser and the swinging away of the folder, and then brings the punch block 91 down upon the stock to force the punches into or through it and at the same time to press the fold. In the illustrative machine it should be noted that the punches are located so as to operate upon the folded margin.

As has been stated the illustrative machine is adapted to ornament the margins of pieces of upper leather such for example as shoe tips which are to be incorporated in boots and shoes. Allof the parts of uppers of boots and shoes have some curved edges, and it is usually along a curved edge that the ornamental perforations are made. The illustrative.l machine is specifically adapted to fold and ornament a shoe tip along that curved edge which, in the finished shoe, is stitched to the vamp.

Although the invention has been set forth in connection with a. particular machine, it should be understood that the invention is not limited in the scope of its application to the particular machine shown and described.

Having thus described my invent-ion, what I claim as new and desire to securlu 4by Letters Patent of the United States isv 1. A machine for operating upon a p) of upper stock, some of the edges of wl are curved, having in combination a sup for the piece, an edge gage, mechanism folding the margin along a' curved edge of said piece while a portion of said edge is in contact With said gage, mechanism for producing a line of ornamental punch holes along said margin, the -curvature of the line corresponding to the curvature of the edge of the folded margin, and means for opera-ting said mechanisms successively in 'the order named.

2. A machine of the class described having, in combination, mechanism for folding the margin of a piece of stock, mechanism for punching the margin after it has been folded, a single member operatively connected With b oth of said mechanisms, and means for actuating said single memlber.

3. A machine of the class described having, in combination, a creaser and a folder, means for causing them to coperate to fold the margin of a piece of stock, a punch, and means for causing said punch to pass through a portion of the folded margin.

4. A machine of the class described having, in combination, a combined folding bed and stripper plate upon which a `piece of stock may be placed, means for folding the margin of said piece, and means for punching said piece.

5. A machine of the class described having, in combination, a combined folding bed and stripper plate upon which a plece of stock may be placed, a creaser for determining the line of fold, a folder for bending the margin of the stock about the creaser, a punch, means for operating the creaser and folder to form the fold, and .means for causing relative movement 'between the stock and the punch to punch the stock and press the fold. i

6. A machine of the class described having, in combination, folding mechanism comprising a creaser and a movable folder, punching mechanism comprising a punch and a punch-block, and means for operatmg the creaser, folder, and punching mechanism in the order named.

7. A machine of the class described having, in combination, folding mechanism comprising a, bed, a punch located beneath said bed, a combined punch-block and presser,means for causing relative movement between said punch and block to punch the stock supported upon said bed, and means for folding the margin of said stock directly above the said punch prior to the punching operation, whereby said punch passes through the folded portion of said margin.

8. A machine of the class described having, in combination, a su-pporting bed, clamping mechanism for holding the stock upon said bed, means for folding a piece of stock so clamped, and means for punching the folded portion of said piece.

9. A machine of the class described having, in combination, clamping mechanism,

folding mechanism, and punching mechanism, and means for causing said mechanisnls to operate successively upon the stock in the order named, the punching mechanism operating upon the portion of the Work turned over by the folding mechanism.

10. A machine of the class described having, in combination, a combined folding bed and stripper plate upon which ya piece of stock may be placed, yieldin means for supporting said bed, means or clamping said piece to said bed, means for folding the margin of said piece, and means forpunch-y ing' said piece.

l1. A machine of the class'described having, in combination, a combined folding bed and stripper plate upon which a piece of`y stock may be placed, a presser foot for clamping said piece upon said bed or plate, a creaser for determining the line of fold, a folder for bending the margin of the material about the creaser, a combined foldpresser andl punch-block, a punch arranged to cooperate with said punch block, and means for operating said foot, creaser, folder and block in the order named.

12. A machine of the class described having, in combination, a yielding bed for supporting a piece of stock, a cross-head mov-A able toward and from said bed, a creaser carried by said cross-head and connected therewith in such a manner that movement of the cross-head in one direction causes movement of said creaser in the opposite direction, a folder and a plunger also carried by said cross-head, a punch located beneath said yielding bed, and means for operating said cross-head.

13. A machine of the class described having, in combination, a bed upon which the stock is placed, a creaser for determining the line of fold, a folder for bending the margin of the piece about the creaser, a cross-head, a pivot connecting said folder with said cross-head, a spring tending at all times to move the folder toward the creaser, a stop normally preventing such movement, and means for operating the cross-head to disengage. said folder from said stop.

14. A machine of the class described having, in combination, a cross-head, a presser foot movable With respect thereto, a spring tending to move the presser foot toward the stock, a creaser pivoted to said presser foot, a link pivoted to said creaser, to said presser foot, and to said cross-head, a latch pivoted to said cross-head and normally holding said presser foot spaced from the stock, said latch having a tail, a tripping member located in the path of the tail of said latch, a folder carried b-y said cross-head, and means for operating said cross-head.

15. A machine of the class described having, in combination, a lbed for supporting the stock, a creaser for determining the line of fold, means for operating said creaser, a folder carrier, a folder pivoted thereto, a spring tending to move said folder angularly into operative position, a guide adapted when the folder is lowered to move said folder in opposition to said spring, and means for raising and lowering said folder carrier.

16. A machine for operating upon tips of boots and shoes4 having in combination, mechanism for folding the curved margin of a tip1 Which in the finished shoe is fastened to t e vamp, mechanism for producing an ornamental design along said margin parallel to the curve of the folded edge thereof, and means for operating said mechanisms successively in the order named.

17. A machine for operating upon a piece of upper stock, some of the edges of which are curved having, in combination, mechanism for folding the margin along a curved edge of said piece, mechanism for producing an ornamental design along said margin, the curva-ture of the design corresponding to the curvature of the edge of the folded margin, and means for operating said mechanisms successively in the order named.

18. A machine for operating upon a piece of upper stock some of the edges of which are curved havingl` in combination, mechanism for folding the margin along a curved edge of said piece, mechanism for producing an ornamental line of punch holes along said margin, the curvature of the ornamental line corresponding to the curvature of the edge of the folded margin, the stock engaging ele- 4ments of said folding and punching mechanisms being in close proximity, and vmeans for operating said mechanisms successively in the order named.

19. A machine of the class described having, in combination a support for a piece of stock, means for simultaneously folding all 

